There may be 9 million bicycles in Beijing, but there's also a heck of a lot of traffic. To deal with all those wheels, Chinese innovators have come up with a Futurama-esque solution: a new breed of mass transit that lets cars drive through it. Take a look.

The Nissan Leaf and Chevy Volt will hit dealer showrooms in just a few months. To make sure Bay Area buyers have places to charge their new EVs, the Bay Area Air Quality Management District just agreed to subsidize installation of more than 5,000 public and private charging stations.

Retrofitting houses to run on cleaner fuel and make them more energy efficient could save as much oil as would be spilled in two Deepwater Horizon disasters a month. So says a report from the Natural Resources Defense Council and the Institute for Market Transformation.